Key West, FL

Weather Forecast Office

NWS Key West

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Last Map Update: Fri, Oct 2, 2026 at 12:54:57 pm EDT

Watches, Warnings & Advisories

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National Weather Service Tampa Bay Area, FL

National Weather Service Miami - South Florida

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Coastal Flood Advisory

Small Craft Advisory

Rip Current Statement

Coastal Flood Statement

Short Term Forecast

Coastal Flood Advisory/Statement

Small Craft Advisory

Island Chain

Marine Winds

Wave Heights

A Coastal Flood Advisory is in effect for the Upper Keys and a Coastal Flood Statement is in effect for the Middle and Lower Keys. Saltwater flooding of low elevation streets and lots is expected. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters should expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater. For more information on coastal flooding in the Florida Keys, refer to weather.gov/key/coastal_flooding.

A Small Craft Advisory is in effect for the Florida Straits and SE Gulf waters. Forecast: E-SE winds near 20 knots, with seas of 5-6 feet and occasionally 8 feet. Wind and wave conditions will be hazardous for small craft. Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions.

***A COASTAL FLOOD ADVISORY REMAINS IN EFFECT FOR THE UPPER KEYS*** UPPER KEYS: TODAY: Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 80s. East winds near 15 mph, decreasing to 10 to 15 mph. Chance of rain 50 percent. ***A COASTAL FLOOD STATEMENT REMAINS IN EFFECT FOR THE LOWER AND MIDDLE KEYS*** LOWER AND MIDDLE KEYS: TODAY: Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. East winds near 15 mph, decreasing to 10 to 15 mph. Chance of rain 50 percent.

***A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR THE FLORIDA STRAITS AND THE SE GULF WATERS*** ***SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS THE BAYSIDE/GULFSIDE WATERS AND HAWK CHANNEL*** TODAY: Moderate to fresh E-SE breezes, except gentle to moderate Florida Bay. Seas: Bayside/Gulfside: 2-3 ft, W of Marquesas: around 4 ft, occasionally to 5 ft, Hawk Channel: 3-5 ft, occasionally to 6 ft, Florida Straits: 4-6 ft, occasionally to 8 ft, SE Gulf: 3-5 ft, occasionally to 6 ft. Bay/nearshore waters choppy, except a light to moderate chop in Florida Bay. A chance of showers and thunderstorms.

***A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR THE FLORIDA STRAITS AND THE SE GULF WATERS*** ***SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS THE BAYSIDE/GULFSIDE WATERS AND HAWK CHANNEL*** TODAY: Moderate to fresh E-SE breezes, except gentle to moderate Florida Bay. Seas: Bayside/Gulfside: 2-3 ft, W of Marquesas: around 4 ft, occasionally to 5 ft, Hawk Channel: 3-5 ft, occasionally to 6 ft, Florida Straits: 4-6 ft, occasionally to 8 ft, SE Gulf: 3-5 ft, occasionally to 6 ft. Bay/nearshore waters choppy, except a light to moderate chop in Florida Bay. A chance of showers and thunderstorms.

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NWS Key West